This paper discusses the use of general principles that are used to promote usability in interactive systems. These interactive systems include some commercially software applications, computing devices, and interfaces. First, a summary of those principles is provided. Then, six detailed examples from the chosen application(s), device(s), and interface(s) are discussed, two for each principle. ...

I N T R O D U C T I O N . . 142 IN VIVO D I G E S T I O N I N SIMPLE-STOMACH A N I M A L S . . 142 S T O M A C H . . . 143 SMALL INTESTINE . . 143 H I N D G U T . . 143 FACTORS I N F L U E N C I N G DIGESTIBILITY I N V I V O . . 144 I N VITRO M E T H O D S FOR E S T I M A T I N G D I G E S T I B I L I T Y . . . 145 D I A L Y S I S CELL METHOD . . 145 Objective . . 145 Principle . . 145 Methods....

In this paper we prove that if $X $ is a Banach space, then for every lower semi-continuous bounded below function $f, $ there exists a $left(varphi_1, varphi_2right)$-convex function $g, $ with arbitrarily small norm,  such that $f + g $ attains its strong minimum on $X. $ This result extends some of the  well-known varitional principles as that of Ekeland [On the variational principle,  J. Ma...

This paper considers the relational versions of the surjective, partial surjective, and multifunction weak pigeonhole principles for PV , Σ1, Π b 1, and B(Σ b 1)-formulas as well as relativizations of these formulas to higher levels of the bounded arithmetic hierarchy. We show that the partial surjective weak pigeonhole principle for Π1 formulas implies that for each k there is a string of leng...

Banach's contraction principle has been improved and extensively studied on several generalized metric spaces. Recently, complex-valued $S$-metric spaces have been introduced and studied for this purpose. In this paper, we investigate some generalized fixed point results on a complete complex valued $S$-metric space. To do this, we prove some common fixed point (resp. fixed point) theorems usin...

participation has been with us since the inception of living in a family. participation developed in the matrix of religion and, two centuries ago, opend up its way in political systems of european countries. it supported the democratic principle of people's determining their own destiny. today, participation is considered a necessity for the total development of not only individuals, but ...